2016-04-01 16:11 GMT+02:00 Reinhardt Behm <rb...@hushmail.com>: > On Friday 01 April 2016 14:33:29 Elvis Stansvik wrote: >> 2016-04-01 12:45 GMT+02:00 Elvis Stansvik <elvst...@gmail.com>: >> > Hi folks, >> > >> > I have a full screen, page based Qt Quick 2 application. Input is >> > contstrained by the hardware to the Left/Right/Return keyboard keys, >> > so is quite limited, and navigation between pages is done using >> > buttons on each page which handle return presses using (most of the >> > time) Keys.onReturnPressed and navigation between buttons and other >> > items with KeyNavigation.left/right. >> > >> > I now have the need to provide a special global shortcut: On almost >> > all of the screens, holding the Enter key for 3 seconds should bring >> > the user immediately to a sort of start screen, where he/she can >> > choose to go into Settings or Power Off. Kind of like how holding the >> > power button on a phone often brings up a power off/flight mode menu. >> > >> > I'm struggling to find a good way to handle this centrally: since >> > Enter presses are normally accepted (swallowed) by my various buttons >> > and other input items on the pages, where can I put some central key >> > press/release handler in which to start/stop a timer (to determine if >> > it was a long 3 sec press or not)? >> > >> > My pages are FocusScopes stuffed in a StackView inside a Window. >> > >> > Many thanks for any advice. Has noone had this kind of requirement >> > before? (Global "hold key" shortcut). >> >> Actually, scratch this. Our input device is a pushable wheel, and I've >> realized now that we better re-program the Arduino we have hooked up >> to it to have the logic to determine "long" vs "short" presses there >> instead, and deliver these as distinct keypresses. >> > > Well this might be the better idea. > I don't know enough about Qt Quick since I am doing everything in C++ and > widgets. But there I would install an event filter on every page, catching > keypress/release for the enter key, but no eating it up. Start a QTimer on > press, stop it on release. If it fires, enter was pressed long and this can > trigger your global action.
Yes, this is sort of what I started doing, but couldn't quite find an equivalent of an event filter. But I think in the end, modifying the code on the Arduino hooked up to the pushwheel is what we'll do. Elvis > > Reinhardt > > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
